Solubility in Water 1.4A 0.96A H 108.9° H H TABLE 10-3 Solubility of H Alcohols in Water (at 25C) H Solubility Alcohol in Water CHCH2一CH2CH hydrophilic region methyl miscible hydrophobic region ethyl miscible n-propyl miscible t-butyl miscible ●) isobutyl 10.0% n-butyl 9.1% H H n-pentyl 2.7% cyclohexyl 3.6% Solubility decreases as the size n-hexyl 0.6% phenol 9.3% of the alkyl group increases. hexane-1,6-diol miscible Copyright 2005 Pearson Prentice Hall,Inc. > Chapter 10 16
Chapter 10 16 Solubility in Water Solubility decreases as the size of the alkyl group increases. =>
1.4A 0.96A Methanol 108.9° H ·Vood alcohol" H H Industrial production from synthesis gas Common industrial solvent Fuel at Indianapolis 500 >Fire can be extinguished with water >High octane rating >Low emissions >But,lower energy content >Invisible flame => Chapter 10 17
Chapter 10 17 Methanol • “Wood alcohol” • Industrial production from synthesis gas • Common industrial solvent • Fuel at Indianapolis 500 ➢Fire can be extinguished with water ➢High octane rating ➢Low emissions ➢But, lower energy content ➢Invisible flame =>